Rolling-mill bearing



Aug. 6, 1929. H. A. FISHER ROLLING MILL BEAR TING Filed Sept. 1, 1925 mMr M mum/M 5 5 my A m m .P E H E a 6 i 2 ATTORNEYS Patented Aug. 6,1929.

UNITED STATES HERMAN A. FISHER, OF WORCESTER, MASSACHUSETTS.

ROLLING-MILL BEARING.

Application filed September This invention relates to a journal or rollbearing for use in machines in which the bear ings sustain excessivelyheavy pressure and is more particularly an improvement on the journaldescribed and claimed in my copending application filed January 16,1925, Serial Number 2941.

It is the general object of my invention to improve the construction ofsuch bearings and to provide improved means for lubrlcating and coolingthe same. With this general object in. View, one feature of the inventon relates to the provision of a journal in WlllCh a liner forms afraction of the bearing surface of the journal and in which a chamber,

preferably coextensive with and adjacent the liner is supplied with amedium for cooling the liner and in which lubricant is furnished througha port near that end of the liner which is adjacent the path of approachof the roll neck, which lubricant will be picked up by said roll neckand be spread over the liner and prevent undue heating of the liner andlubricant.

A further feature of the invention is the provision of journal box orbearing having a liner, a cooling chamber coextensive with the liner andin communication with an arcuately shaped channel having one face opento the roll neck disposed in the journal and embracing a greater portionof the roll neck so that a cooling medium supplied to the chamber andchannel will come in direct contact with the roll neck and thereby main-5 tain the liner and roll neck at a proper working temperature, packingrings being provided to prevent the loss of fluid from the ends of thejournal.

This invention will be best understood to from a consideration of thefollowing detailed description, in view of the accompanying drawingforming a part of the specification; nevertheless it is to be understoodthat the invention is not confined to the disclosat ure, beingsusceptible of such changes and modifications which shall define nomaterial departure from the salient features of the invention asexpressed in the appended claims.

Figure 1 is an end View of one form of the journal. I

Figure 2 is a longitudinal vertical section taken along the line 2-2 ofFigure 1.

Figure 3 is a transverse vertical section at taken along the line 33 ofFigure 2.

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1, 1925. Serial No. 53,931.

Figure 4: is a transverse vertical section taken along the line 4-4 ofFigure 2.

Figure 5 is a rean end view of a modified form of the journal.

Figure 6 is a longitudinal vertical section taken'along the line 6 -6 ofFigure 5.

Referring more particularly to the drawings 10 designates a roller'employed in rolling mills and provided with a roll neck 11 formed onthe end of the roll and of reduced diameter. l

The roll neck is received Within a longitudinal passage 12 in a casingwhich is composed of two sections 13 and 14:. The upper section 13 is ofless thickness than the lower section 14 and is removably secured to thelower section by bolts 15. The upper section is convexed as shown at 16and has cut-out portions 17 at the ends thereof in which are snuglyfitted arcuately shaped carrier blocks 18, the blocks being so designedas to form a continuation of the convened portion of the section 13 andprovide bearing surfaces for the opposite ends of the roll neck 11.

That portion of the wall of the passage which lies along the bottom ofsaid passe e and included in the lower section 14 of t e casing is cutaway longitudinally and circumferentially to provide a seat 19 for anarcuately shaped liner 20 which has its curved active face 21 raisedabove the wall of the passage and in engagement with the surface of theroll neck 11 so that the roll neck will not come in contact with thewalls of the passage .and thus prevent sealing of the passage. The liner20 is made of some nonfriction metal well known in the art. Alongitudinal edge 22 of the liner is beveled adjacent a port 43 topermit lubricant from said port'to be readily drawn in between the linerand the roll neck with the least possible friction.

The section 14 is cored below the liner 20 and close to said liner toprovide arouately shaped passages 23 and 24 forming cooling chamberspreferably coextensive with the liner 20. These passages are connectedtogether intermediate their ends by transverse passages 25 so thatproper circulation of a cooling medium is afforded. A duct 26 connectedwith passage 23 forms an inlet for the cooling medium and terminates at27 in the end wall of the section 14. ll. duct 28 connects the passageswith a channel or recess 29 to be described.

The walls of the passage 12 are cut away for a portion of the length ofthe sections 13 and 14 as shown in Figures 2 and 6, along the fullarcuately shaped inner face of the section 13 and along portionsadjacent the opposite edges of the liner 20 to provide said channel 29.It will be noted that the channelembraces the greater portionof thecircumferential area of the roll neck 11 and since the face of thechannel is entirely open, the roll neck will be exposed over the greaterportion of its surface to a cooling medium supplied from thecoolin'gchambers 23' and 24. A discharge duct 30 running the length ofthe section 14 has an elongated port 31 connecting said duct with thechannel 29 at a point on the side of the liner 20 which is opposite the,inlet duct 28. The duct 31 terminates at 32 in the rear end of thesection 14.

A cup-shaped member 33 is employed in the form shown in Figures 5 and 6and has a flanged inner open end 34 bolted to the rear ends of thesections 13 and 14 and housing a reduced end 35 of the roll neck 11. Itmust be borne in mind that the casings in the two constructions shown inFigures 1 to 4inclusive and Figures 5 and 6 are identical. In addition,the casing in Figures 5 and 6 is provided with the cupshaped member 33to receive and distribute the cooling medium to the passages in thecasing while in Figures 1 to 4 inclusive the coolin medium is supplieddirectly to the port 2 and duct 26 in the lower section 14. The closedend 37 of the cup-shaped mem ber is provided with a central internallythreaded opening 38 into which is adapted to be screwed a pipeconnection through which is supplied a cooling medium under pressuresuch as oil or water. The cupshaped member has ahollow enlargement 39depending therefrom providing a passage for the cooling medium from themember 33 to the duct 26, the passage registering with the port 27 inthe end wall of the section 14. The cu is provided with perforated ears40 wliereby said cup is bolted to the sections 13 and 14.

The section 14 (Fig. 2) has a longitudinal duct 41 terminating in therear end wall in a port 42 to whichis adapted to be connected a pipe forsupplying lubricant under pressure. An elongated narrow port 43 connectsthe duct 41 with the central passage 12 in the casing and at thatbeveled or cham fered longitudinal edge of the liner 20 which isadjacent the path of approach of the roll neck 11 so that the lubricantfrom the duct will be picked up by the revolving roll neck and spreadover the active surface 21 of the liner. The lubricant is carried on thesurface of the roll neck in a thin film and in direct contact with thecooling medium in the channel 29 where it forms with 14 to hold thepacking ring in place. Packing rings 45 and 46 are disposed at the innerend of the casing and between said end and a shoulder 47 on the roller10. A resilient wire ring 48 embraces ring 46 and aids in sealing therings to the inner end of the casing.

When the rollers 10 are water cooled, a pipe may be inserted through alongitudinal passage in the roll neck for the purpose.

Having described the construction and advantages of my improved bearing,I do not wish to be limited to the details herein disclosed, otherwisethan as set forth in the claims.

What I claim is:

1, A journal bearing for the roll neck of a roller having in combinationa casing provided with a longitudinal passage to receive the roll neck,a liner, a portion of the passage being cut away to form a seat for saidliner, said casing adjacent the liner being cored to provide a coolinchamber, the section of the casing whic supports the liner beingprovided with a longitudinal duct ofening into said passage ad'acent oneend 0 the liner for suppl g In ricant to the surface of the roll neclr rsaid roll neck being adapted when revolved to spread the lubricant overa face of the liner.

2. A journal bearing for the roll neck of a rollerhaving in combinationa casing provided with a longitudinal passage, a liner therein forming aportion of the wall of the passage and havin one face above the saidwall, the casing eing provided with a coolin chamber adjacent the linerand coextensive with said liner, the wall of the passage being cut awayfor a greater rtion of the circumference thereof to th m a channel for acoolin medium so that a greater portion of sur ace of the roll neck isexposed directly to the cooling medium, the ends of said channelterminating adjacent the ends of the liner, the casing having a ductconnecting the channel with the cooling chamber.

3. A journal bearing for a rotating member comprising a casing having alongitudinal opening arranged to receive saidv member, said casing beingcored to form a cooling chamber adjacent said bearin opening butseparated therefrom, and sai chamber permitting the passage of a coolingfluid therethrough, means for feeding lubricant to the rotating memberat a fixed point in said casing, and means acting normally andcontinuously for conducting the cooling fluid from said cooling chamberto directly engage and cool the previously lubricated portion of therotating member at a fixed point in said casing substantially spacedperipherally from the point of lubrication.

4. A journal bearing for a rotating member comprising a casing having alongitudinal opening arran ed to receive said member, said casing beingcored to form a cooling chamber adjacent said bearing opening butseparated therefrom, and said chamber permitting the passage of acooling fluid therethrough, and means axially disposed adjacent one edgeof said cored portion for feeding lubricant to the rotating member, saidcooling chamber along the opposite edge of the cored portion being indirect communication with the rotating member, whereby the cooling fluidfrom the cooling chamber may mix with the lubricant and further coolsaid rotating member.

5. A journal bearing for a rotating shaft comprising a casing having asegmental shaft-supporting portion and a recessed cooling portion withanopen side adjacent said shaft, said casing also having a coolingchamber closely adjacent said shaftsupporting portion but separated fromsaid shaft, means to feed a lubricant directly to said shaft-supportingportion, and additional means acting normally and continuously to feed acooling liquid through said cooling chamber and from said chamber tosaid recessed cooling portion in direct contact with said shaft andlubricant, whereby said shaft is both lubricated and cooled.

15. A journal bearing for a rotating member comprising a casing having asegmental bearing portion, means to supply a lubricant to said rotatingmember adjacent the point where said member enters engagement with saidbearing portion, said casing hav ing a cooling chamber closely adjacentsaid bearing portion but separated from said rotating member, andadditional means to feed a cooling liquid through said cooling chamberand from said chamber in direct contact with the remaining portion ofthe periphery of said rotating member, said cooling liquid engaging saidrotating member adjacent the point where the rotating surface of saidmember leaves said segmental bearing portion.

HERMAN A. FISHER.

